Polymarket

Strait of Hormuz Traffic Remains Stifled Amid Geopolitical Tensions, Market Odds Reflect Pessimism for May Recovery

A Polymarket prediction market indicates low confidence in the Strait of Hormuz returning to normal transit levels by May 31, 2026, as ongoing geopolitical conflict and dual blockades severely restrict shipping traffic.

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— 3 min read

The critical Strait of Hormuz, a vital artery for global energy and trade, continues to experience severe disruptions, with a Polymarket prediction market reflecting strong skepticism that transit calls will return to pre-crisis levels by the end of May 2026. The market, which resolves to “Yes” if the IMF Portwatch 7-day moving average of transit calls reaches or exceeds 60 by May 31, currently shows a 'No' outcome trading at 0.685 (68.5% implied probability), against a 'Yes' at 0.315.

This prediction market underscores the ongoing instability in the region, which has seen shipping traffic plummet since an Israel-U.S. air war against Iran commenced on February 28, 2026. Iran's retaliatory actions, including warnings, attacks on merchant ships, and the alleged laying of sea mines, have effectively created a "dual blockade" alongside a U.S. naval blockade of Iranian ports established on April 13.

Recent data paints a stark picture of the reduced activity. As of May 6, 2026, only four commercial vessels transited the Strait in a 24-hour period. Earlier in May, nine ships crossed on May 3, down from 13 on May 2 and 21 on May 1. On May 1, a mere two vessels were recorded traversing the Strait. The Strait of Hormuz Live Tracker reported 11 transits in the last 24 hours as of May 5, a stark contrast to the "normal daily average of 60". This represents a more than 90% decline from pre-conflict levels, which saw approximately 130 ships passing through daily. For context, IMF Portwatch data for April 19, 2026, showed a 7-day moving average of just 12.57 transit calls, far below the market's 60-call threshold.

Geopolitical developments continue to complicate any prospects of normalization. While Iran announced on April 17 that the Strait would be open to commercial shipping following an Israel-Lebanon ceasefire agreement, restrictions were reimposed due to the persistent U.S. blockade. The U.S. launched "Operation Project Freedom" on May 4 to escort merchant ships but announced a temporary pause on May 6, citing "great progress" toward a potential agreement with Iran. However, Iran has warned that U.S. escort missions would violate the ceasefire and insists that all commercial ships require coordination with the Iranian military. Further escalating the administrative control, Iran established a "Persian Gulf Strait Authority" on May 5, mandating official transit permits for all vessels.

The impact on commercial shipping has been profound. Shipping companies are actively avoiding the Strait, even during brief periods of announced reopening, due to extreme war-risk insurance premiums—reportedly 20 times higher than normal—and the inherent unreliability of the passage. As Cyril Widdershoven, Senior Advisor at Blue Water Strategy, noted, "unreliability is indistinguishable from closure" in the economics of global trade, highlighting that physical access alone is not enough to restore confidence. International diplomatic efforts, including those by the UK and France to form a naval coalition, remain contingent on a "sustainable ceasefire agreement".

With May rapidly progressing and no clear resolution to the dual blockades or a significant de-escalation of tensions, the market's current odds strongly suggest that the 7-day moving average of 60 transit calls will not be met by the May 31 deadline. The ongoing conflict, combined with the reluctance of shipping operators to navigate such a high-risk environment, points to a prolonged period of suppressed traffic in this crucial maritime chokepoint.

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Market data fetched at 2026-05-06 12:15 UTC | Polymarket ID: 1809560

This article is generated by AI for informational purposes only. It does not constitute financial advice. Always do your own research before making any investment decisions. Data sourced from Polymarket and public web sources.

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